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• 基础研究 • 上一篇    下一篇

福辛普利对大鼠心肌缺血再灌注损伤的保护作用

赵学忠1,张志国1,王晔玲1,曹 霞2,于小风2,徐华丽2,曲绍春2,睢大员2*   

  1. 1. 吉林大学第一医院心血管内科,吉林 长春130021;2. 吉林大学药学院药理学教研室,吉林 长春130021
  • 收稿日期:2004-10-05 修回日期:1900-01-01 出版日期:2005-07-28 发布日期:2005-07-28
  • 通讯作者: 睢大员

Protective effects of Fosinopril on myocardialischemia-reperfusion injury in rats

ZHAO Xue-zhong1, ZHANG Zhi-guo1,WANG Ye-ling1, CAOXia2, YU Xiao-feng2, XU Hua-li2, QU Shao-chun2,SUI Da-yuan2*   

  1. 1. Department of Cardiovascular Medicine, First Hospital, Jilin University, Changchun 130021,China;2. Department of Pharmacology,School of Pharmacy,Jilin University,Changchun 130021,China
  • Received:2004-10-05 Revised:1900-01-01 Online:2005-07-28 Published:2005-07-28
  • Contact: SUI Da-yuan

摘要: 目的:观察福辛普利对大鼠心肌缺血再灌注损伤的保护作用。 方法:采用在体大鼠结扎冠状动脉前降支30 min后,松扎再灌注24 h造成心肌缺血再灌注模型,测定血清天冬酸氨基转移酶(AST)、乳酸脱氢酶(LDH)、心肌型肌酸激酶同功酶(CK-MB)、超氧化物歧化酶(SOD)、谷胱甘肽过氧化物酶(GSH-Px)活性及丙二醛(MDA),通过光镜和电镜观察心肌组织形态学。 结果:福辛普利对心肌缺血30 min再灌注损伤24 h大鼠,可明显降低血清AST、LDH及CK-MB活性(P<0.05),提高SOD及GSH-Px活性,降低MDA(P<0.05或P<0.01),并能明显减轻心肌组织水肿以及超微结构的损伤。 结论:福辛普利对大鼠心肌缺血再灌注损伤具有明显保护作用,可能与其增强抗氧化酶活性,减少自由基对心肌的氧化损伤有关。 R285.5, R542.2

关键词: 药理学, 心肌再灌注损伤, 心肌酶, 自由基, 心肌, 病理学

Abstract: Objective To observe the protective effects of Fosinopril on myocardial ischemia-reperfusion injury in rats. Methods The myocardial ischemia-reperfusion model was induced by 30 min coronary occulusion and 24 h reperfusion in opened-chest anesthetized rats. The changes of aspartate aminotransferase(AST), lactate dehydrogenase(LDH), MB isoenzyme of creatine kinase(CK-MB), superoxide dismutase (SOD) and glutathione peroxidase (GSH-Px) activities, and malondialdehyde (MDA) content in ser um were determined. Morphology of myocardial tissue was observed with optics and electron microscopes. Results Fosinopril decreased significantly the serum MDA content and AST, LDH and CK-MB activities as well as increased the serum SOD and GSH-Px activities. It also reduced edema and injury of ultrastructure in myocardial tissue. Conclusion Fosinopril has protective effects on myocardial ischemia-reperfusion injury, which may be related to scavenging the oxygen free radicals formed during reperfusion. Key words:Fosinopril/pharmacology; myocardial reperfusion inj ury; myocardial enzymes; free radicals; myocardium/pathology

Key words: pharmacology, myocardial reperfusion injury, myocardial enzymes, free radicals, myocardium, pathology

中图分类号: 

  • R285.5, R542.2